Connecticut: Legislature Passes Budget; Extends Surtax and Modifies Combined Reporting Cap
On June 3, the Connecticut General Assembly passed its budget bill for the biennium ending June 2027; the bill includes several updates to the state’s corporate income tax regime. It is currently pending Governor Lamont’s signature. Notable changes include:
- Extending the 10 percent corporate income surtax, currently set to expire for tax years beginning on or after January 1, 2026, for an additional two years to tax years beginning before January 1, 2028. All other provisions of the surtax remain unchanged, including the bar on applying credits against the surtax and the inapplicability of the surtax to companies whose gross income falls below $100 million (except when the taxpayer is included in a combined report).
- Removing the existing $2.5 million combined reporting cap for tax years beginning on or after January 1, 2025. The current cap is a limit on the amount of additional tax that can be imposed on a unitary group above what would have been imposed had each group member filed separately prior to the application of the surtax and available of credits.
- Closing the period during which a combined group can utilize pre-2015 net operating losses (NOL) without regard for the Connecticut 50 percent NOL usage limitation, provided the group elected to forfeit 50 percent of its outstanding NOLs on its 2015 return. A combined group that made this election is permitted to reclaim the NOLs it waived on its 2015 return.
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